Flatten playdough in a tray, press a toy dinosaur’s feet straight down, and lift the toy without dragging it. Repeat to make a trail, then compare the toe shapes, count the prints, and measure the gaps. Use reusable dough for repeat play, air-dry clay for a keepsake, washable paint on paper for a stamped trail, or sidewalk chalk for an outdoor version.
Choose Your Footprint Activity
Choose the material by what you want to keep. Reusable dough lets children flatten their marks and start again; a lasting clay print needs a product intended to air-dry. The craft models a trace: real fossil footprints record an animal’s activity, whereas body fossils include remains such as bones and teeth [1].
| Method | Materials | Choose it when | What happens afterward |
|---|---|---|---|
| Reusable dough prints | Playdough, a tray, and toy dinosaurs | You want to press, compare, flatten, and repeat | Return the dough to storage as its label directs |
| Air-dry clay keepsake | Air-dry clay, a tray, and toy dinosaurs | You want a named footprint to keep | Allow the manufacturer’s drying time before handling or decorating |
| Paint-stamp trail | Washable paint, paper, a plate, and toy dinosaurs | You want a paper display or a shared trail | Leave the paper flat until the paint is dry |
| Chalk trackway | Sidewalk chalk and a tape measure | You want an outdoor drawing and measuring activity | The trail is temporary and can be washed away |
Check Materials and Supervision
Follow the age and use labels on every toy, clay, dough, paint, and chalk product. Do not assign the activity a single age rating: suitability depends on the materials and the child. If a child still mouths objects, neither dough nor paint is an automatic substitute; choose an activity that avoids the materials they may put in their mouth.
- Keep small dinosaurs, detachable pieces, and broken craft fragments away from children under three. U.S. small-parts rules cover toys and other articles intended for children under three that present choking, aspiration, or ingestion hazards from small parts [2]. The regulatory test checks whether an article fits entirely inside the specified cylinder without compression, in any orientation; it also covers pieces detached during the specified use-and-abuse tests [3].
- Inspect the toys for loose feet, sharp edges, and damage. ASTM F963-23 is a U.S. toy safety specification, but naming a standard does not establish that a particular toy or homemade activity complies with it [4]. Use the supplier’s product-specific information rather than assuming a compliance claim applies to every item.
- Keep craft materials out of mouths and eyes, use them only as labeled, and supervise throughout. Wash hands with soap and running water after the activity [5].
No plaster, powdered casting material, or oven is needed for these versions. For outdoor play, choose a flat area away from traffic and leave enough room to move without crossing another child’s path.
Make Dinosaur Footprints in Dough or Clay
What to Set Out
Gather a shallow tray, reusable playdough or labeled air-dry clay, toy dinosaurs with distinct foot shapes, a blunt craft stick, and a ruler. Cover the work surface. For individual keepsakes, plan one slab per child and leave room beside the prints for a name.
Press and Lift
- Flatten the material into a slab. For air-dry clay, follow the package’s thickness guidance rather than assuming every product should be finger-thick.
- Make a test print at the edge. Hold the toy upright, press its feet down, and lift straight up. Check whether the toes are visible before making the main trail.
- Move the toy forward and repeat. If the toy stands on four feet, expect a group of impressions rather than a single three-toed mark. Use the actual foot shape instead of assigning the toy a scientifically accurate track pattern.
- Compare prints from different toys. Measure a print from its back edge to the longest toe, then look at the gaps between successive marks.
- For reusable dough, flatten the trail and try again, then store it as directed. For a clay keepsake, add a shallow name mark and follow the manufacturer’s drying and handling instructions before decorating or boxing it.
Do not rely on a universal one- or two-day drying estimate. Material, thickness, and room conditions vary. A surface that feels firm is not by itself proof that a clay piece is ready for storage; follow its product instructions.
Make a Paint-Stamp Footprint Trail
Lay paper on a protected table or floor area where nobody needs to walk. Put a thin layer of labeled washable paint on a plate, dip the toy’s feet, and blot them on scrap paper. Stamp down and lift vertically. Continue along the sheet, using a different color for each toy if you want to distinguish the trails.
Let the paint dry before measuring, rolling, or displaying the paper. This version fits within an arts-and-crafts activity, but the paint’s own label—not the activity category—determines whether it is suitable for the children using it.
Troubleshoot a Test Print
Use a scrap sheet or spare patch of dough before starting the finished piece. Change one thing at a time and compare the next mark with the first.
- The paint mark is a blob: blot off excess paint and try another stamp. Compare the two marks; keep the one in which you can distinguish the toes.
- The dough toes look smeared: try lifting straight up rather than sliding the toy sideways. Reset the test patch before repeating.
- The feet leave only flat circles: inspect the toy’s soles. Some figures have smooth bases or support plates; another toy may give a clearer shape.
- There is no space for names: decide where the name will go before pressing the main prints. More impressions do not, by themselves, determine drying time.
For a group activity, try the chosen materials before the session. Use the trial to decide how many trays fit the table and where wet work can stay undisturbed; do not promise take-home clay pieces before checking the product’s drying instructions.
Draw an Outdoor Chalk Trackway
Draw a simple three-toed footprint on the pavement, then repeat it in a left-right pattern. Children can walk beside the trail and count or measure the marks; stepping or jumping between them is optional. Adjust the gaps to the space and the children’s movement needs.
For a real-track comparison, the National Park Service reports abundant three-toed Eubrontes tracks at Dinosaur Trackway National Natural Landmark measuring about 9 to 18 inches long, with strides of about 3.5 to 4.5 feet [6]. Draw a 12-inch print and mark a 4-foot stride as an example within those ranges, not a jump children must make. Measure stride from the same point on one left footprint to the next left footprint, or right to right, rather than between adjacent left and right marks [7].
A Worked Size Comparison
If your toy footprint measures 2 cm long, the reported 9-to-18-inch track range converts to 22.86–45.72 cm using 2.54 cm per inch. Dividing by 2 gives about 11.4–22.9 times the toy print’s length. This is a calculation example, not a measurement of your toy or a scale for the whole dinosaur; measure your own print before substituting a value.
Talk About the Finished Prints
Put a toy print beside a child’s shoe print and ask which is longer, how many toes are visible, and which way each points. Explain that these are prints made by toys and shoes, not newly created fossils. When comparing this activity with a fossils kit with molding and painting activities, distinguish making a model from uncovering objects in a dig block, and follow the kit’s separate age label and instructions.
A footprint gives clues about a foot and its movement; it does not reveal the animal’s color or sound.
Clean Up and Store the Work
Wipe up paint and collect scraps before they spread beyond the work area. Clean washable toys and tools as their labels allow. Keep reusable dough in its recommended container; store air-dry clay pieces only after the specified drying process is complete. Discard moldy or musty craft material rather than painting over it. Keep finished pieces and any broken fragments away from younger siblings.
Display a dry paper trail flat or rolled loosely. Leave chalk outside or wash it away where local rules permit. Before the next session, check the saved materials and toys again rather than assuming everything is still ready to use.
Planning a classroom or birthday-group activity and need to discuss kit quantities and age suitability?
References
- National Park Service. What Is a Fossil? Trace fossils and body fossils. Accessed November 4, 2026.
- U.S. Consumer Product Safety Commission. Small Parts for Toys and Children’s Products. Under-three scope and small-parts guidance. Accessed November 4, 2026.
- Cornell Legal Information Institute. 16 CFR 1501.4—Size Requirements and Test Procedure. Regulation text reproduced by Cornell LII. Accessed November 4, 2026.
- ASTM International. ASTM F963-23: Standard Consumer Safety Specification for Toy Safety. Standard identification, not evidence of an individual product’s compliance. Accessed November 4, 2026.
- Centers for Disease Control and Prevention. About Handwashing. Soap and running-water guidance. Accessed November 4, 2026.
- National Park Service. Paleontology of Dinosaur Trackway National Natural Landmark. Reported track lengths and strides; the worked example uses the page’s inch values. Accessed November 4, 2026.
- Indiana Geological and Water Survey, Indiana University. Tracking Dinosaurs. Lesson by Erik Kvale and Kim Sowder; pace and stride measurement. Accessed November 4, 2026.